REDUCING LATENCY AND COST IN RESILIENT CLOUD FILE SYSTEMS

摘要

Various exemplary embodiments relate to a method of storing a file block in a cloud system (130) including a plurality of data centers (135a-f). The method may include: receiving the file block from a client 110a-b); generating a plurality of chunks from the file block, wherein each chunk is smaller than the file block and the file block may be reconstructed from a subset of the chunks; distributing each chunk to one of the plurality of data centers (135a-f); and storing the file block in a cache. Various exemplary embodiments relate to a cloud system for storing files. The system may include a plurality of data centers including a primary data center. The primary data center may include: a cache configured to store at least one complete file block (260); a chunk storage configured to store a chunk for each of a plurality of file blocks (240); a file encoder (230); and a file decoder (250).